Abstract—Subclinical Hypothyroidism is a much more common disorder with a world-wide occurrence as compared to overt Hypothyroidism. Overt Hypothyroidism is associated with abnormalities of lipid metabolism, but the significance of dyslipidemia in subclinical hypothyroidism (SCH) remains controversial.
Aims: To compare the lipid profile between subclinical hypothyroid patients & healthy controls (age & sex matched) so as to determine any association between lipid profile & subclinical hypothyroidism.
Materials and Methods: In a case-control study, Thyroid stimulating hormone (TSH), free T3, free T4, anti thyroperoxidase (TPO) antibodies, total cholesterol, high density lipoprotein(HDL) cholesterol, low density lipoprotein (LDL) cholesterol, Very low density lipoprotein (VLDL) cholesterol, serum triglycerides were measured in 50 patients with subclinical hypothyroidism and 50 age- and sex-matched Euthyroid controls after an overnight fasting.
Results: Mean serum triglycerides (TG) and very low-density cholesterol (VLDL) were significantly higher in patients with SCH than controls (P < 0.05). No association was found between serum total cholesterol, high density lipoprotein (HDL) cholesterol, low density lipoprotein (LDL) cholesterol and SCH.
Conclusions: Dyslipidemia is more common in SCH compared to controls. High serum triglycerides and VLDL were observed in patients with SCH.
Keywords: Subclinical hypothyroidism (SCH), TSH, Lipid Profile.
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